/*
 * Copyright © 2024-2025 Wenze Wei
 *
 * This file is part of StadionOS.
 *
 * This Source Code Form is subject to the terms of the GNU General Public License, v. 2.0.
 * You can obtain a copy of the GPL at
 * https://www.gnu.org/licenses/old-licenses/gpl-2.0.html.
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
 * the specific language governing rights and limitations under the License.
 */

#include "../include/fsd.h"


/**
 * @brief Closes a file descriptor.
 *
 * This function closes the file descriptor 'fd'.
 * It performs error checking on 'fd' to ensure it is valid.
 *
 * @param fd The file descriptor to close.
 * @return int 0 on success, or -1 on error.
 */
int Sclose(int fd) {
    if (fd < 0)
      return -1;
      
    return syscall(SYS_close, fd);  
}
